<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="评价的商品ID" prop="goodsId">
        <el-input v-model="queryParams.goodsId" placeholder="请输入关联的评价商品的ID" clearable @keyup.enter.native="handleQuery"/>
      </el-form-item>
      <el-form-item label="点赞数" prop="upLike">
        <el-input v-model="queryParams.upLike" placeholder="请输入点赞数" clearable @keyup.enter.native="handleQuery"/>
      </el-form-item>
      <el-form-item label="好评星数" prop="esteem">
        <el-input v-model="queryParams.esteem" placeholder="请输入好评星数" clearable @keyup.enter.native="handleQuery"/>
      </el-form-item>
      <el-form-item>
	    <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd" v-hasPermi="['product:comment:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="info" plain icon="el-icon-sort" size="mini" @click="toggleExpandAll">展开/折叠</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-if="refreshTable" v-loading="loading" :data="commentList" row-key="parentId" :default-expand-all="isExpandAll" :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
      <el-table-column label="评价的商品ID" prop="goodsId" />
      <el-table-column label="上传的评价图片" align="center" prop="img" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.img" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column type="textarea" label="评价" align="center" prop="comment" />
      <el-table-column label="点赞数" align="center" prop="upLike" />
      <el-table-column label="好评星数" align="center" prop="esteem" />
      <el-table-column label="好评星数" align="center" prop="esteem">
        <template v-slot="scpoe">
          <el-rate v-model="scpoe.row.esteem" show-text ></el-rate>
        </template>
      </el-table-column>
      <el-table-column label="父级评论ID" align="center" prop="parentId" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)" v-hasPermi="['product:comment:edit']">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-plus" @click="handleAdd(scope.row)" v-hasPermi="['product:comment:add']">新增</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)" v-hasPermi="['product:comment:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改商品评价对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <el-form-item label="评价的商品ID" prop="goodsId">
          <el-input v-model="form.goodsId" placeholder="请输入关联的评价商品的ID" />
        </el-form-item>
        <el-form-item label="父级评论的id" prop="parentId">
          <el-input v-model="form.parentId" placeholder="请输入父级评论ID" />
        </el-form-item>
        <el-form-item label="上传的评价图片" prop="img">
          <image-upload v-model="form.img"/>
        </el-form-item>
        <el-form-item label="评价" prop="comment">
          <el-input v-model="form.comment" type="textarea" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="点赞数" prop="upLike">
          <el-input v-model="form.upLike" placeholder="请输入点赞数" />
        </el-form-item>
        <el-form-item label="好评星数" prop="esteem">
          <el-input v-model="form.esteem" placeholder="请输入好评星数" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listComment, getComment, delComment, addComment, updateComment } from "@/api/product/comment";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

export default {
  name: "Comment",
  components: {
    Treeselect
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 商品评价表格数据
      commentList: [],
      // 商品评价树选项
      commentOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        goodsId: null,
        img: null,
        comment: null,
        upLike: null,
        esteem: null,
        parentId: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询商品评价列表 */
    getList() {
      this.loading = true;
      listComment(this.queryParams).then(response => {
        this.commentList = this.handleTree(response.data, "parentId", "id");
        this.loading = false;
      });
    },
    /** 转换商品评价数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.parentId,
        label: node.comment,
        children: node.children
      };
    },
	/** 查询商品评价下拉树结构 */
    getTreeselect() {
      listComment().then(response => {
        this.commentOptions = [];
        const data = { parentId: 0, comment: '顶级节点', children: [] };
        data.children = this.handleTree(response.data, "parentId", "id");
        this.commentOptions.push(data);
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        goodsId: null,
        img: null,
        comment: null,
        upLike: null,
        esteem: null,
        parentId: null,
        createTime: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      this.getTreeselect();
      if (row != null && row.parentId) {
        this.form.id = row.parentId;
      } else {
        this.form.id = 0;
      }
      this.open = true;
      this.title = "添加商品评价";
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false;
      this.isExpandAll = !this.isExpandAll;
      this.$nextTick(() => {
        this.refreshTable = true;
      });
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      if (row != null) {
        this.form.id = row.parentId;
      }
      getComment(row.id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改商品评价";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null && this.form.id!=0) {
            updateComment(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addComment(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal.confirm('是否确认删除商品评价编号为"' + row.id + '"的数据项？').then(function() {
        return delComment(row.id);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    }
  }
};
</script>
